package org.papervision3d.materials;

import nme.display.MovieClip;
import nme.display.Sprite;
//import flash.utils.getDefinitionByName;

import org.papervision3d.core.log.PaperLogger;
import org.papervision3d.core.render.draw.ITriangleDrawer;


/**
* The MovieAssetMaterial class creates a texture from a MovieClip library symbol.
* <p/>
* The texture can be animated and/or transparent.
* <p/>
* The MovieClip's content needs to be top left aligned with the registration point.
* <p/>
* Materials collects data about how objects appear when rendered.
*/
class MovieAssetMaterial extends MovieMaterial implements ITriangleDrawer
{
	
	private static var _library :Object = new Object();
	private static var _count   :Object = new Object();
	
	/**
	 * By default, a MovieAssetMaterial is stored and resused, but there are times where a user may want a unique copy.  set to true if you want a unique instance
	 * created
	 */
	public var createUnique:Boolean = false;
	
	/**
	* A texture object.
	*/		
	override public function get texture():Object
	{
		return this._texture;
	}
	/**
	* @private
	*/
	override public function set texture( asset:Object ):void
	{
		if( asset is String == false )
		{
			PaperLogger.error("Error: MovieAssetMaterial.texture requires a String to be passed to create the MovieClip reference from the library");
			return;
		}
		
		movie = Sprite(createMovie( String( asset ) ));
		bitmap = createBitmapFromSprite( movie );
		_texture = asset;
	}

	// ______________________________________________________________________ NEW

	/**
	* The MovieAssetMaterial class creates a texture from a MovieClip library id.
	*
	* @param	linkageID			The linkage name of the MovieClip symbol in the library.
	* @param	transparent			[optional] - If it's not transparent, the empty areas of the MovieClip will be of fill32 color. Default value is false.
	*/
	
	public function new( linkageID:String="", transparent:Boolean=false, animated:Boolean=false, createUnique:Boolean=false, precise:Boolean = false)
	{
		movieTransparent = transparent;
		this.animated = animated;
		this.createUnique = createUnique;
		this.precise = precise;
		if( linkageID.length > 0 ) texture = linkageID;
	}


	// ______________________________________________________________________ CREATE BITMAP
	
	/*
	* since we need to pass a movieclip reference to MovieMaterial, I changed this method
	* from createBitmap, to createMovie.  the super's constructor will take care of
	* creating the actual bitmap reference
	*  
	*/
	protected function createMovie( asset:* ):MovieClip
	{
		// Remove previous bitmap
		if( this._texture != asset )
		{
			_count[this._texture]--;

			var prevMovie:MovieClip = _library[this._texture];

			if( prevMovie && _count[this._texture] == 0 )
			{
				_library[this._texture] = null;
			}
		}
		
		// Retrieve from library or...
		var movie:MovieClip = _library[asset];
		
		var MovieAsset:Class;
		
		// ...attachMovie
		if( ! movie )
		{
			MovieAsset = getDefinitionByName( asset ) as Class;
			movie = new MovieAsset();
			_library[asset] = movie;
			_count[asset] = 0;
		}
		else if( createUnique )
		{
			MovieAsset = getDefinitionByName( asset ) as Class;
			movie = new MovieAsset();
		}
		else
		{
			_count[asset]++;
		}

		// Create Bitmap
		return  movie;
	}
	
}